18756572

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 17531428

約数列:

[1, 2, 4, 19, 38, 47, 59, 76, 89, 94, 118, 178, 188, 236, 356, 893, 1121, 1691, 1786, 2242, 2773, 3382, 3572, 4183, 4484, 5251, 5546, 6764, 8366, 10502, 11092, 16732, 21004, 52687, 79477, 99769, 105374, 158954, 199538, 210748, 246797, 317908, 399076, 493594, 987188, 4689143, 9378286, 18756572]

約数ペア:

[(1, 18756572), (2, 9378286), (4, 4689143), (19, 987188), (38, 493594), (47, 399076), (59, 317908), (76, 246797), (89, 210748), (94, 199538), (118, 158954), (178, 105374), (188, 99769), (236, 79477), (356, 52687), (893, 21004), (1121, 16732), (1691, 11092), (1786, 10502), (2242, 8366), (2773, 6764), (3382, 5546), (3572, 5251), (4183, 4484)]